Democratic Party stalwart James Carville is crowing as he watches Donald Trump's once devoted fans cave in their support for the MAGA movement.Speaking on his Politicon podcast Thursday with co-host Al Hunt, the famed 81-year-old Democratic strategist described watching Trump's hardcore backers drop their allegiance to the president — and it left him giddy."People are so mortified about what he's... going to pull off between now and Election Day," Carville said. "And you got to worry about what he's going to do in a foreign policy arena between now and Election Day, because his swift and impending doom is coming."The former Clinton aide emphasized the palpable shift in public sentiment. "I mean... he's got to know that they can't protect him enough. You can feel it. It's not just that the polling is bad; you can feel it. I mean, you... walk around, and you can just see the anger, and the anger coming from people that you don't — you would never expect."Carville described a Kentucky Derby encounter last weekend with Jimmy Williams Jr., president of the International Union of Painters and Allied Trades. The union leader reported substantial Trump voter remorse among membership."[Williams] said their members... most of them did vote for Trump, and they got real buyer's remorse now, which I think is a good sign," Carville said. "I mean, now we know that young people are starting to have real buyer's remorse, we know that there's real buyer's remorse among Hispanics. Apparently, among blue-collar people, it's pretty substantial."